Unix Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Unix Interview Questions

Questions Answers Views Company eMail

Why do I get connection refused when the server is not running?

1 2385

How can I set the timeout for the connect() system call?

1512

Why does connect() succeed even before my server did an accept()?

1 2118

How do I convert a string into an internet address?

1381

What are socket exceptions? What is out-of-band data?

1 2279

Why do I keep getting EINTR from the socket calls?

1 2103

Is there any advantage to handling the signal, rather than just ignoring it and checking for the EPIPE error? Are there any useful parameters passed to the signal catching function?

1427

How do I send [this] over a socket?

1 2238

How come select says there is data, but read returns zero?

1 2057

How can I force a socket to send the data in its buffer?

1616

What are the pros/cons of select(), non-blocking I/O and SIGIO?

1365

Why does it take so long to detect that the peer died?

1519

Why do I get EPROTO from read()?

1451

Where can a get a library for programming sockets?

1 2132

Whats the difference between select() and poll()?

1646

Un-Answered Questions { Unix }

What does the swapping system do if it identifies the illegal page for swapping?

1057

Please explain fork() system call?

996

How do I run a whois command?

1156

Can you explain the method of changing file access permission?

923

Where is unix used today?

897

What is the architecture of unix operating system?

933

What is unix explain its architecture?

995

Is unix the first operating system?

938

How do I convert a string into an internet address?

1381

What are the file permissions and access modes in unix?

976

What is a shell?

950

How do I find the port number of pid in unix?

907

What do chmod, chown, chgrp commands do?

1294

Explain what are the main families of threads?

1083

How can I write a multi-homed server?

1647

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